CZ219092A3 - Window with circumferential frame made of a section extruded from a polymer, a process for producing such window and apparatus for making the same - Google Patents

Abstract

Prodn. of a glass plate with a polymer frame or frame section, includes extending a profiled polymer section, using a calibrated extruder nozzle, immediately onto the edge region of the glass plate, or onto an intermediate section consisting of a glass light opaque layer and/or one or more adhesion improving layers. At least one local profile section is mechanically removed and a guide hardening polymer is injected, which forms a permanent connection with the already hardened polymer.

Description

«ÍUDh MiloJyŠKTFČKA Lawyer

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WINDOW WITH CIRCULAR RAM PRODUCTION WINDOWS AND EQUIPMENT i

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FROM THE POLYMER PROFILE i (LAYOUT OF THE POLYMER)

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a window with a perimeter frame of an extruded polymer profile in situ, and more particularly to a window of an automobile to be glued into a body opening. The invention further relates to a method for producing a window as defined above and to an apparatus for carrying out the method.

BACKGROUND OF THE INVENTION

U.S. Pat. No. 5,057,265 discloses a method of manufacturing a window for a car provided with a profile frame. This method uses a calibrated extrusion mold which is placed on the edge of the glass sheet and then moved along the entire perimeter of the glass sheet where the polymer is deposited. When the mold has reached its starting point after passing the entire perimeter of the glass sheet on which it has formed a profile, the polymer feed is interrupted and the mold is removed from the glass sheet. The uv method makes it possible to form a frame, in particular a frame, on the periphery of the glass sheet

which has a flap extending outwardly from the glass sheet. It is sufficient to use for this purpose a polymer whose high viscosity allows the shape and location of the profile to be maintained after its formation.

In the above-described method of finishing the frame, i.e., the zones of joining the start and the end of the extruded profile, are carried out in a second stage after the mold has been removed from the glass sheet, by a suitable shape device. The polymers which have been shown to be useful in the above-described technique are multicomponent, but most commonly one-component polyurethane is used, which polymerizes at atmospheric humidity. Two-component polyurethanes are also useful.

Upon compression by a special apparatus as described in U.S. Pat. No. 5,057,265, it is found that an excess of material is formed on the flap in the zone of joining the extrusion profile at the beginning and the end of the extruded profile to be cut off after polymerization. This is an additional work that requires further handling of the window after the polymerization is completed. Conversely, when the amount of polymer is not in excess, as stated, but shows a deficiency, it may happen that

The material, in particular in the flap, which then has a smaller thickness, which may be a defect, in particular in the case of a car window, when the window is mounted in the vehicle body.

The in-situ extrusion technique of the frame at the periphery of the glass pane presents numerous advantages, in particular its flexibility, which eliminates the investment in the very expensive molds required in the encapsulation type of the reaction injection molding process. Although profile variations are compatible with the in situ extrusion technique, see, for example, U.S. Pat. Nos. 5,108,526 and EP-A-0 479 677, some complex shapes cannot be formed directly, especially shapes that relate to the periphery of the glass sheet.

This is particularly the case when it is desired to incorporate some other functions into a frame, as these often occupy a significant place.

EP-A-0 255 218 discloses a reaction injection molding technique for automotive windows in which, after injection of the frame itself, various devices are installed for functions other than the usual functions of automotive window frames.

Examples include a “spoiler”, a rear-view mirror, a stop signal, electrical wires, or water or air distribution pipes. The reaction injection molding rod used is carried out in one stage, the accessories are placed on the side of the glass sheet in the mold before the injection starts and are automatically stored in the frame of the finished window. The problem of placing the accessories near the extruded profile on the periphery of the glass sheet is very diverse and it is impossible, in particular because of the cost or the properties of the polymer, to consider using the encapsulation technique by reaction injection molding.

. It is an object of the invention to improve a window provided with an in-situ extruded profile by adding an additional member to the profile and to improve the peripheral extrusion method described above to obtain a frame of any shape in some of the bands of the extruded perimeter frame. It is also an object of the invention to provide a frame with a regular cross-section even in zones where extrusion cannot be performed correctly, such as in the zones of joining the start and end of the peripheral profile extruded in situ.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION The invention solves the problem by providing a window, in particular a car window intended for gluing into a body opening, provided with an in-situ embossed circumferential profile, characterized in that the embossed profile is supplemented by at least one additional polymer member.

According to a preferred embodiment of the present invention, the additional member has its shape at the connection with the extruded profile.

According to a further preferred embodiment of the present invention, the additional member is arranged at the connection point between the beginning and the end of the extruded profile.

According to another preferred embodiment of the present invention, the additional member is located in a corner of the window.

According to a further preferred embodiment of the present invention, the additional member is formed integrally with one or more devices from the group comprising light signals such as a stop signal, electrical feeders such as window heater, antenna feeders, water or air channels, ice passage passages and fastenings.

The invention further provides a method of fitting an in situ extruded polymer profile to the periphery of a glass sheet, optionally coated with an opaque layer, with an additional defined shape member attached to one and the other section of the profile, which comprises depositing at least one mold element. It is supported on a glass sheet and joined to the profile, and a curable mass is adhered thereto, which is particularly adherent to the profile polymer.

According to a preferred embodiment of the present invention, before placing the mold element, part or all of the profile is raised at the location of the additional member.

According to another preferred embodiment of the present invention, the profile is lifted before the polymer has fully cured.

According to another preferred embodiment of the present invention, the profile is lifted after curing.

According to a further preferred embodiment of the present invention, after raising the profile at the location of the additional member, the edge of the profile is left in place in contact with the glass sheet or the opaque layer.

According to a further preferred embodiment of the present invention, the window is intended to be inserted into an opening of the car body and the profile is designed to interact with the positioning of the window by gluing.

According to another preferred embodiment of the present invention, the additional member comprises one or more foreign elements intended to provide a function other than the profile itself.

According to another preferred embodiment of the present invention

The polymer used for in-situ extrusion is a one-component polyurethane polymerized with air humidity or a two-component polyurethane, the curable material being based on a one-component polyurethane, which is converted to an elastomer by heat.

The invention further provides an apparatus for carrying out the method as defined above, comprising a two-part mold with a cavity, the shape of which corresponds to the shape of the auxiliary member and which is attached to the surface of the glass sheet and from one side to the other. wherein the inlet channel is connected to the cavity and the upper mold part and the lower mold part are provided with means for heating and cooling.

According to a preferred embodiment of the present invention, the cavity is limited by sealing sheets extending from the mold surface.

According to a further preferred embodiment of the present invention, the sealing sheet which is supported on the surface of the glass sheet is movable and spring-actuated.

According to a further preferred embodiment of the present invention, at the bottom of the mold, the limiting of the end of the profile flap is formed by the end of the sliding plate sliding on the planar surface of the bottom of the mold.

According to a further preferred embodiment of the present invention, the sliding plate is provided with a fork which cooperates with a pressure cylinder placing the sliding plate in a position adjacent to the flap.

According to a further preferred embodiment of the present invention for restoring the extruded profile after removal in the corner region of the window, the lower mold part is provided with a cut plate with a contour that limits the corner of the flap, the bottom of the mold and can be supported on the edge of the flap and on the supporting surfaces of the cut plate.

According to another preferred embodiment of the present invention, the slide plates are adjustable to follow the lip edge.

According to a further preferred embodiment of the present invention, the cavity surfaces in connection with the profile are surface treated chemically or by sandblasting to match the appearance of the new shaped part and the adjacent extruded profiles.

According to another preferred embodiment of the present invention, the inner surfaces of the cavity are coated with an anti-adhesive layer, for example polytetrafluoroethylene.

The technique of the present invention, which comprises the measures described above, has two different functions. On the one hand, it makes it possible to repair zones in which the extruded profile is improperly formed, such as the connection zone between the beginning and the end of the perimeter profile, but also allows to attach an additional member to the profile of the correct shape which gives it additional properties.

With respect to the repair of a defective profile, the invention allows action after the profile has cured. The method is thus much less sensitive than conventional techniques which involve shaping a still soft profile with the risk of distorting adjacent bands already having a suitable shape. In addition, when a polymer is used which hardens relatively quickly inside the mold, the advantage of a very fast manufacturing step combines with the absence of subsequent deformation of the profile once removed from the mold.

When it comes to restoring the connection between the beginning and the end of the peripheral profile extruded in situ on the glass sheet, it is advantageous to cut off the respective zone after complete hardening. In this way very precise cuts are obtained. For manufacturing reasons, however, it may be advantageous to remove the defective zone immediately after deposition, i.e. before polymerization. It is also possible to combine both techniques: removing the bulk of the mass while it is still in a dough state and cutting off the residues after polymerization.

In order to repair the defective profile and to create a completely new add-on, it is necessary that the mass to be used has a very good permanent adhesion to the rest of the extruded profile. This is why polymer systems having the same chemical base but having different curing conditions than the polymer forming the extruded profile are preferably used.

It is possible that the nature of the polymer to be applied to the extruded profile is such that, although it has good adhesion to the frame-forming polymer, it has poor adhesion to the glass or enamel of the substrate. In such a case, it may be advantageous not to lift the original profile completely, but to leave a layer of a certain width in contact with the glass or the enamel to which the molded mass can easily adhere.

In the case where the additional member is intended to provide a wider contact with the glass than the original profile, it may prove necessary to pre-treat the new surface of the glass or the enamel intended to come into contact with the molded mass.

Materials compatible with the process of the present invention are generally all polymer systems to be injected as long as they provide sufficient bonding with the already extruded profile in situ and optionally with the glass or enamel they cover.

It is also preferred that these polymers have a very short setting time. Here, for example, two-component adhesive polyurethanes, hot melt, casting polymers or thermoplastic polymers of various characteristics are suitable. It is also important that the polymers have the same hardness, the same elasticity and the same appearance as the adjacent sections of the extruded in situ profile in addition to the previous properties.

In any case, it is necessary that the transition between the extruded part and the additionally cast part cannot be recognized on the finished product.

When the extruded profiled frame is formed by a one-component polyurethane system that polymerizes moisture, such as that described in U.S. Patent No. 3,779,794, then the composition that should be suitable for pouring the additional member to the preform you-:

The profile is based on a reactive system of one-component polyurethane which polymerizes by heat curing. and,

Such material is marketed under the SIKAFLEX 360 HC brand.

So far, it has been reported that the material of this type was capable of polymerization only in a furnace with circulating warm air with infrared heating at medium wavelength and that it is necessary for the surface of the material to be exposed to the atmosphere. Based on the experiments leading to the present invention, it has been found that

the polymerization may be carried out in a heated form. It even turns out that the hardening of the material in contact with the mold is particularly rapid. From the operational point of view, it is advisable to blow the material into the preheated mold, while having the material at the beginning of the injection | viscosity, which decreases, allowing material to penetrate into the smallest cavities of the mold. This gives a molded product which has no bubbles or unfilled spots.

At the end of the filling of the mold cavity, the curing process of the polymer begins immediately under the influence of heat. At a temperature mold, for example, 140 ° C?

the elastomer hardening is completed in one minute. At this point, the mold can be pushed away from the glass sheet at any time.

The process of the present invention is not only applicable

-Ίfor restoring the connection zone between the start and end of the profile at the perimeter of the glass pane, but also for any repair at any point in the profile. Whenever direct extrusion in situ causes a problem and the quality of a place is not good, it is possible to;

to create a profile at this location.

For example, when a glass pane provided with a frame or frame portion has a location at some corner where it is difficult to extrude the profile of a constant cross section, it is very easy to stop extrusion at that location or, if already done, remove the profile after curing to recover the defective part.

In this way it is possible to obtain shapes which could not be produced by direct extrusion.

Likewise, the add-on member obtained by pouring may comprise foreign elements which will thus be definitively attached to the periphery of the glass sheet. These may be mounting elements such as washers, screws, hooks, etc. These elements are used either to fix the window in the body opening or to attach other objects, such as

like a rearview mirror. The technique of the invention also allows directly?

attach the accessories to the glass pane circuit. These will be, for example, light signals, such as a stop signal, electrical connections ;;

for window heating or for antenna, water or air ducts, ice axes passageways. *

Overview of figures in drawings% v

The invention is illustrated in the drawings, wherein FIG. 1 shows a zone of connection between the beginning and the end of the extruded profile j after the extrusion is completed; FIG. 2 shows the same zone of the glass pane after the profile has been removed; Fig. 4 is a sectional view along line IV-IV of Fig. 3; Fig. 5 is a sectional view according to Fig. 5; 3, FIG. 6 shows a variation of one detail of FIG.

4, FIG. 7 shows a variation of the mold for pouring a straight profile; FIG. In the corner, the lower part of the mold is shown

9 shows the upper part of the mold of FIG. 8, FIG two parts of the mold for adjusting the connection in the corner of the glass pane; Fig. 11 shows a glass pane provided with a modified frame. r;

and

DETAILED DESCRIPTION OF THE INVENTION

Most of the figures show the edge of the glass sheet 1, on the periphery of which the profile 2 has been embossed. The glass sheet 1 is shown as a solid sheet. Obviously, it may also be an insulating plate consisting of individual panes separated by air or gas layers or a composite sheet such as used for automotive windshields.

Such automotive windows are often provided with a layer of opaque enamel on their perimeter. The basic function of this enamel is to protect the profile 2 against the effects of ultraviolet radiation, but at the same time it allows to cover all the components of the protection system _S; glass. In the present example, the profile 2 has an approximately U-shaped cross-section with a flat bottom 6 and two ribs intended to limit the expansion of the adhesive at the time of deposition, namely the outer rib 6 and the inner rib 2. The outer rib 6 extends at right angles above the edge flap 8 to this parallel. After settling, the flap 8 bends and protects the edge of the glass sheet 1 at the time of insertion into the body opening. At the end of the insertion, the flap profile 8 serves to center the glass sheet 1 in the opening. In a completed vehicle, this flap, which is attached to the body, has an aesthetic role in covering the groove that is between the window and the body.

The profile 2 is formed by direct extrusion in situ at the periphery of the glass sheet 1. Extrusion is performed directly on the glass or on the layer 2, optionally after insertion of one or more layers of adhesive material.

Such a process is described, for example, in U.S. Pat. No. 5,057,265. If the profile 2 is deposited over the entire perimeter of the glass sheet 1, when the extruder arrives again instead of where the polymer started to deposit, it is lifted away from the glass sheet 2. At this point, the crossing zone 10 'shown in FIG. Generally, it is not possible to leave this space in such a state, especially since the flap 8 is so deformed that it cannot fulfill its purpose.

Means have been described for improving the state of the art when the polymer is still in a plastic state. The technique used after curing the polymer will be described herein. When the polymer has sufficiently hardened to be separated without breaking the adjacent bands, the respective band is cut off. This is done in two steps. First, the band is separated from the rest of the profile by two cuts with a knife. In a second step, the entire deformed zone is cut by cutting parallel to the glass sheet.

Preferably, this cutting is performed at a distance from the glass sheet to leave a thin layer of the original polymer on its surface to facilitate adhesion of the new mass to the profile grouping and the glass sheet.

The previous operation can be performed on a fully cured polymer using other tools such as a planer or milling cutter. The advantage of using a milling cutter is that the operation can be performed automatically after placing the glass sheet 1 on the support 13 shown in FIG.

If a polymer having good adhesion to the glass or to the enamel coating of the glass is used for pouring, it is possible to completely remove the profile 2 polymer up to the surface of the glass sheet 1, but it is also possible not to cover the entire zone. means stopping extrusion before reaching the connection band.

When the glass sheet 1 has been prepared as described above, the mold is put in place and filled with the material suitable for carrying out the pouring.

The mold, which is shown in detail in FIGS. 3 to 5, consists of two parts, namely the upper part 16 and the lower part 17. The separation zone 18 between the two mold parts 16, 12 is on. The upper part 16 and the lower part 17 of the mold are connected together by the support rods 19.20. The support rods 12, 20 allow the two mold parts 16, 12 to be placed at the desired time on the edge of the glass sheet 1 at the end of the operation, and slide them away at the end of the operation. 16.12 Parts of the mold are arranged in precise relative position by the action of the guide pin 21 and the _n corresponding hole in the second mold part.

The lower mold part 17 comprises a storage zone 22 for receiving the glass sheet 1 and continuing with the flap carrier 8 up to the separating zone 18, the upper mold part 16 having a cavity 24. whose surface 25 corresponds to the upper part of the profile 2. in the lower mold part 17, it extends over the entire length of the mold, that is, it extends to the surroundings. In this way, the profile 2, like the surface of the glass sheet 1, forms the boundary of the mold.

To compensate for any deviations in profile 2 and / or deviations in the thickness of the glass sheet 1, the upper mold part 16 has sealing strips 26 on its surface 25,22. The sealing strips 27 are perpendicular to the length of the profile 2 over the entire width of the surface 25.

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10 in the cavity 24 such that they are supported on the entire ends of the profile 2. They thus provide very good tightness at the end of the cavity 24. In fact, they resiliently reshape the profile 2, which ensures tightness by elastic action. The longitudinal sealing strip 26 acts equally in a different direction on the edge of the glass sheet surface. It is positioned exactly at the edge of the backsheet 12, which is all that remains of the original profile, and presses directly on the glass sheet 1 or the layer 2, if any.

Both mold parts 16 and 17 are provided with controlled heating means up to selected temperatures. For example, they may be provided with electrical resistors and temperature sensors, but it is also possible to use a heat transfer fluid. In this case, the mold parts 16.17 are provided with channels 30 to which hoses 31.32 are connected to allow the warm oil to circulate. A heating device is required if the material to be poured is a one-component polyurethane which polymerizes by heat,

The upper mold part 16 is provided with an injection port 35 having an extension 36. When the upper portion 16 and the lower portion 17 have been correctly positioned at the edge of the glass sheet 1, an injection port 37 is inserted into the extension 36 and the mold cavity 24 'is filled with liquid polymer. . It is important that immediately after filling, the injection nozzle 37 is moved away from the mold to prevent it from heating and thereby solidifying the polymer inside the injection nozzle 21.

The two mold parts 16.17 will remain in place long enough for the polymer to cure under the effect of heat so that no deformation of the newly adhered section of the profile-2 is possible.

Fig. 6 shows an example of making * ^? one of the upper mold parts 16. It is a replacement of the longitudinal sealing strip 26, which is normally retained by the movable sealing strip 40. The sealing strip 40 makes it possible to compensate for variations in the thickness of the glass sheet 11.

It is located between the wall of the upper mold part 16 and the fastening plate 42, which is fixed by the screw 45 to the mold. Sealing strip 40 se. it can move vertically and is supported by the glass sheet 1 by causing the spring 41 to be limited by its projection 42 which is housed in the recess 44 and limits its displacement downwards when the upper mold portion 16 is spaced from the glass sheet 1.

It will be appreciated that, if necessary, the surfaces of the mold cavities may be coated with layers that prevent adhesion of the materials used to facilitate the removal of the mold. The surfaces of the cavities can be treated in various ways to give a structure that allows to obtain the same surface quality as during extrusion.

This may be polishing, chemical, effecting or sanding.

In carrying out the process of the present invention, it has been found that treatment with polytetrafluoroethylene PTFE caused at the same time a good surface appearance and easy mold removal.

It may also prove necessary, depending on the properties of the polymer used for pouring, to treat both the surfaces of the existing profile 2 and the glass sheet 1 or even the enamel layer 2 with a suitable adhesion promoter. Instead of the upper part 16; and the mold lower part 17 has been made in one piece as described above, it is also possible to provide the molds with a temperature control system, positioning, different shapes and adapting to the shape of the profiles and their rapid transformation.

The device that has been described can also serve well when working with a thermoplastic polymer. In this case, the channels 22 in the mold parts 16 and 17 are used to circulate the coolant instead of the heating fluid. Thus, a very rapid solidification of the thermoplastic can be obtained.

In some cases, it may be advantageous to provide the mold with refill devices as shown in FIG. Particularly in the automotive industry according to vehicle types, it is common that the length of the flap 8 is not the same for different vehicle windows. The other parts of profile 2, on the other hand, are identical. It may therefore be advantageous to be able to adjust the length of the flap 8 depending on the type of window to be produced. ΐ:

Other reason why edge position control may be required the flaps 8 consist in variations in the production of the extruded frame.

The device shown in FIG. 7 is based on references to parts of the existing frame. and

The contour of the mold part 47 follows the lower edge of the glass sheet.

1 as well as the lower part of the flap 8.49 «This part is extended by a flat surface 22» ^on which the sliding plate 21 can slide.

The thickness of the slide plate 51 corresponds to the thickness of the flap 8 at its edge. The front end 52 of the slide plate 51 forms a mold boundary corresponding to the edge of the flap 8. The upper portion 22 of the mold corresponds exactly to the above-described upper portion of the mold and is simply supported by its planar surface 54 on the upper portion of the slide plate 51.

On the outside of the mold, the slide plate 51 is clamped between two rails 57.58. The bottom rail 57 slides over the surface 59

- the lower mold part 47. It is terminated by a fork-shaped element 60. The fork 60 makes it possible to hold the assembly of rails 57.58 and the slide plate 51 in place by the action of a disc 61 controlled by the piston rod 62 of the pressure cylinder 63.

The method of operation of the apparatus described above is as follows;

First, the lower mold part 47 is set in place. For this purpose, the surface 48 is deposited on the bottom surface of the glass sheet 1 and the vertical abutment surface is applied to the edge of the glass. The pressure cylinder 63 is switched off. Manually or automatically, the slide plate 51 contacts the edge of the flap 8 on either side of the band to be processed. The sliding plate 51 is in fact movable in two directions in a plane. Another operation is to turn on the pressure cylinder 63 to adjust the position of the slide plate 51 with respect to the lower mold portion. Then, the upper mold part 53 is placed in a precise position relative to the lower mold part 47. The mold is now closed and can be injected through the injection port 22 ·

The principle of the method according to the invention, which has been described in connection with FIG. 7 for the straight part of the profile 2, is equally applicable to the corner regions of the profile 2. This is often necessary as it has been found. It is possible to accurately follow the corner of the glass sheet 1. In parts of the glass sheet 1 with very small radii of curvature, it is very difficult to form a peripheral flap by extrusion. In fact, it is necessary to dispense the appropriate injection amounts inside and outside the arc with great precision and often a ring-shaped flap 8 can be seen. In this case it is necessary to completely renew the frame in the corner. For this purpose, the lower part 2Ώ and the upper part 71 · of the mold are used, which are in each case adapted to the corner of the glass plate 72. Here, the profiles 65 and 66 were kept in their straight portions and the curved part was cut in the corner according to lines 22 and 24

Two planar sliding surfaces 75 and 76 have been disposed on the lower mold portion 70 at the lower edge of the flap 66. On the planar sliding surface 75 a sliding plate 77 is disposed and on the planar sliding surface fc a sliding plate 78 is disposed. on planar sliding surfaces 79.76. The edges of the slide plates 79 and 80 again define the boundaries of the flap 66.

The actual zone of the flap corner 66 is limited by a rigid plate,

13 which is located at the same height as the sliding plates 77 and 78. The cut plate g2 has a contour 85 which defines the corner of the flap 66. This plate has abutment surfaces 83 and 84. As in the previous example, the sliding plates 77 and 78 are movable in two directions in the plane. They can thus rest on one end at the edge of the existing flap 66 and at the other end at either of the abutment surfaces 83 and 84, thereby ensuring the continuity of the flap 66. The fastening of the slide plates 77 and 78 after their precise placement has been described. 7 in the same way as in the apparatus of FIG.

Fig. 9 shows an upper mold part for a corner which is intended to be assembled with the lower mold part described above. The upper mold portion also includes an injection port 35 here.

Fig. 10 shows a variation of the invention for pouring an additional member onto an extruded profile that remains in place. This technique is particularly interesting in two cases. First of all, when it is necessary to imprint the frame in certain areas, particularly in the corners, a shape which is very difficult or not at all possible by simple extrusion. A second interesting case is when it is necessary to imprint a new function window under the influence of an additional elastomeric member which is attached to the extruded frame at the periphery of the glass sheet. This includes, for example, the installation of an electrical connection for the connection of the rear window heater or the protective glass of a car, or the additional member is intended for the installation of an ice wiping axis for the rear window.

Fig. 10 shows a case very difficult to realize by simply extruding in situ the perimeter frame: the right angle of the glass sheet 1 when the flap is required to center the glass sheet 1 and has the aesthetic task of obscuring the gap between the glass sheet 1 and angle exactly 90 °. Here, the second method is different and easier to perform than the method shown in FIG. In fact, there is no removal of the frame in the respective zone, simply attaching a new additional member to the existing frame.

Referring to FIG. 10, the glass sheet 1 is shown with an edge χ and an extruded profile 2 with a flap 8. The glass sheet 1 has a corner 90 with an angle of 90 ° with a very small radius of curvature. The profile 2 was seated without the use of a controllable lead device as described, for example, in U.S. Pat. No. 5,108,526.

-14 the inside of the arc is correctly powered, the material in the outer part of the flap 91 is missing.

The special mold shown in FIG. 10 is used to fill this missing section of the profile. The lower mold portion 92 comprises a flat bed 93 bounded by the edge 94. In the corner of the edge, the opening 95 ensures that when the edge J of the glass pane rests against the edge 94. deviation problems do not occur.

The lower mold portion 92 ends at its upper portion with a flat bottom 96 following the lower region of the frame and covering the corner of the glass sheet when it comes into contact with the edge.

The upper mold part 97 has the shape of the upper part of the profile 2, where it is rectilinear. The same is true for the interior 98 of the arc. At the outside of the arc of the cavity 99 of the upper mold part 97, it has a shape to be provided by an additional member. There is an injection port 100 in this zone.

The apparatus described above makes it possible to produce the glass sheet frame shown in Fig. 11, wherein the clear embossed portions and the add-on member are attached by grouting in gray with the flap 101 at right angles and the stiffening portion 102 following the center rib of the profile 2.

The attachment technique described above may employ the same control, adjustment, heating or cooling systems as shown in Figures 3 to 9.

11504 PRAHA. Π

Claims (20)

-15PATENT CLAIMS A window, in particular a car window intended to be glued into a body opening, provided with a circumferential profile embossed in situ, characterized in that the embossed profile is complemented by at least one additional polymer member. Window according to claim 1, characterized in that the additional member has its shape at the point of connection with the extruded profile. Window according to claim 1 or 2, characterized in that the additional member is arranged at the connection point between the beginning and the end of the extruded profile. A window according to claim 1 or 2, characterized in that the additional member is located in a corner of the window. A window according to any one of Claims 1 to 4, characterized in that the additional member is formed integrally with one or more devices from the group comprising light signals such as a stop signal, electrical connections such as for window heating, antenna connections, water channels or air, axle passageways for wiping ice and fastening. 6. A method of fitting an in situ extruded polymer profile onto a perimeter of a glass sheet optionally coated with an opaque layer, an additional defined shape member attached to one and the other part of the profile, characterized in that at least one mold element is supported on the glass sheet. and bonding to the profile and injecting a curable composition which adheres particularly to the profile polymer. 7. A method according to claim 6, characterized in that, before placing the w element of the mold, part or all of the profile is raised at the location of the additional member. · '3 8. The method of claim 7, wherein the profile is not raised before the polymer has fully cured. Method according to claim 7, characterized in that the profile is lifted after curing. 10. A method according to any one of Claims 7 to 9, characterized in that after raising the profile at the location of the additional member, it is left on J1; 2 the edge of the profile in contact with the glass sheet or the opaque layer. 11. A method according to any one of claims 7 to 10, wherein the window is intended to be inserted into an opening of the automobile body and the profile is designed to interact with the positioning of the window by gluing. -1612. 11. The method of claim 11, wherein the additional member comprises one or more foreign elements intended to provide a function other than the profile itself. Method according to any one of claims 7 to 12, characterized in that the polymer used for in-situ extrusion is a one-component moisture-polymerizing polyurethane or a two-component polyurethane, the curable material being based on a one-component polyurethane which is converted to elastomer by heat. Apparatus for carrying out the method according to any one of claims 7 to 13, characterized in that it comprises a two-piece mold (16,17; 47,53; 70,71; 92,97) with a cavity (24,99) the shape of which corresponds to the desired shape of the auxiliary member and which is attached to the surface of the glass sheet (1) and from one side of the auxiliary member band to the extruded profile (2), with an injection port (35, 100) connected to the cavity (24,99); 16) and the lower mold part (17) are provided with means (30) for heating and cooling. Device according to claim 14, characterized in that the cavity (24) is limited by sealing strips (26, 27) extending from the mold surface (25). Apparatus according to claim 15, characterized in that the sealing strip (40) which is supported on the surface of the glass pane (1) is movable and is actuated by a spring (4). Apparatus according to any one of Claims 14 to 16, characterized in that in the lower mold part (47), the end of the flap end (8) of the profile (2) is formed by the front end (52) of the sliding plate (51) sliding on the planar surface. 50) a lower mold part (47). Device according to Claim 17, characterized in that the sliding plate (51) is provided with a fork (60) which cooperates with a pressure cylinder (61,62,63) placing the sliding plate (51) adjacent to the flap (8). O Apparatus according to any one of Claims 14 to 16, characterized in that, in order to recover the extruded profile (65) after removal in the corner region of the window, the lower mold part (70) is provided with a cut plate (82) having a contour (85). limits the corner of the flap (66), wherein the edges of the end of the flap (66) of both sides of the contour (85) are formed by the ends (79, 80) of the slide plates (77,78) sliding on the planar surface (75,76) ) and can be supported on the edge of the flap (66) and on the abutment surfaces (83,84) of the cut plate (82). IL-1-1. -1720. Device according to claim 19, characterized in that the sliding plates (77, 78) are adjustable to follow the edge of the flap (66). Apparatus according to any one of Claims 14 to 20, characterized in that the surfaces (23,25) of the cavity (24,99) in connection with the profile (2) are surface-treated chemically or by sanding to match the appearance of the new molded part and adjacent extruded parts. profiles (2). Apparatus according to any one of Claims 14 to 21, characterized in that the inner surfaces of the cavities (24,99) are coated with an anti-adhesive layer, for example polytetrafluoroethylene. Represented by: Fig.2 ' Λ \ < f • <. O also i> i. Fig.5 From ¹⁶